Follow the steps below to edit and update your 3Play Media captions directly from your Panopto account.

Step 1- Navigate to the Panopto session's settings

From the Panopto portal, navigate to the folder containing the session that needs to be edited and click the Settings icon. 

Step 2- Edit your captions

Select the Captions tab.
Here you can manually type in captions or edit existing captions. 
To do this, click on the Captions tab and type in the text box.

Step 3- Update your captions

Press Enter to complete.
Your edited captions will be visible in the viewer as soon as you save.
Read the Panopto documentation